Related by context. Frequent words. (Click for all words.) 43 caloric restriction 42 neurobiological 42 hypothesis 38 metabolic pathways 37 mitochondrial 37 genetic variant 36 phenotype 36 experimentally 36 molecular mechanism 36 quantum theory 35 Einstein theory 35 causative 34 genetic predisposition 34 mechanistic 34 speciation 34 phenotypes 34 laboratory experiments 34 general relativity 34 evolutionary 33 causation 33 empirical 33 observational studies 33 meta analysis 33 theoretical 32 hypotheses 32 causal link between 32 postulate 32 evolutionary theory 32 causal relationship 31 theory 31 epidemiological studies 31 meta analyzes 31 conventional wisdom 31 cosmological 30 causality 30 Hypothesis 30 pathogenesis 30 causal 30 pathophysiology 30 hypothesize 29 hypothesizes 29 epidemiologic 29 Darwin theory 29 Scientifically 29 extrapolation 28 hypothesized 28 etiology 28 empirically 27 Darwinism 27 empirical evidence 26 theorists 26 probabilistic 26 supposition 26 conclusively 25 scientifically 25 theorem 25 experiments 25 thesis 25 theories 24 dogma 24 mathematical models 24 postulated 24 definitively 23 Keynesian economics 23 intuitions 23 reasoning 23 Theory 23 priori 23 cosmology 22 scientific 22 fallacy 22 postulates 21 conjecture 21 logic 21 plausible 21 findings 21 conjectures 20 theorized 20 conjectured 20 evidence 20 circumstantial evidence 19 myth 19 posit 19 theorizing 19 notion 18 conspiracy theory 17 plausible explanation 17 argument 17 theorize 16 hunch 16 methodology 14 notions 14 assertion 13 method 13 contentions 13 assumption 12 assertions 11 rationale 10 idea 9 premise 8 suggestion